The data include summed cross-sections to whole n-shells and the total
cross-section summed over all n-shells. The data may be used for any of the
hydrogen isotopes. Parameters are usually also present which represent the cross-sections at high n-shells outside
the tabular range and asymptotically at high collision energy. The energy
ranges are suited to neutral beam studies and are generally too high for
relevance to thermal charge transfer. The receiving ions are, for the most part,
the bare nuclei of light elements up to neon. The donor states of hydrogen
include the ground state and may include n'=2 and 3 states. There are a
smaller number of data sets in which neutral helium, lithium and sodium are the
donors. Normally the data sets are used in collisional–radiative models of the
emissivities (including emissivities in the visible wavelength range) of the receiver as driven by
the charge exchange. These derived data, which are more suited to spectroscopic
interpretation of charge exchange signals, are tabulated in ADF12.